电力专业英语阅读与翻译 课件 21-Flexible AC Transmission System、22-Power Quality and Its Improvement

电力专业英语(21)FlexibleACTransmissionSystem参考教材：朱永强.电力专业英语阅读与翻译.机械工业出版社，2024-06FlexibleACTransmissionSystem1.Today’spowertransmissionanddistributionsystemsfaceincreasingdemandsformorepower,betterqualitywithhigherreliabilityandatlowercostaswellaslowenvironmentalimpact.尝试翻译1.Today’spowertransmissionanddistributionsystemsfaceincreasingdemandsformorepower,betterqualitywithhigherreliabilityandatlowercostaswellaslowenvironmentalimpact.翻译如今的输配电系统面临日益增长的需求，要求功率更大，因可靠性更高而质量更好，既要对环境影响小又要成本更低。FlexibleACTransmissionSystem说明powertransmissionanddistributionsystems意思是“电力输送和分配系统”，按照我国电力行业的习惯说法可以简称为“输配电系统”。aswellas表示“在…的同时也…”。介词for带有多个并列的宾语，这些宾语都有各自的定语，这样的名词短语在翻译时可以处理为主谓结构，译文更容易符合中文习惯。FlexibleACTransmissionSystem2.Thebranchcurrentiscontrolledbyphaseanglecontrolofthefiringpulsestothethyristors,thatis,thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandzeroat180degrees.尝试翻译2.Thebranchcurrentiscontrolledbyphaseanglecontrolofthefiring

pulsestothethyristors,thatis,thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandzeroat180degrees.生词n.

点火脉冲firing

pulsen.半导体闸流管thyristor翻译通过对晶闸管点火脉冲的相角控制来控制支路电流，即，电抗器上的压降在点火角为90度时为全部系统电压，在180度时为零。FlexibleACTransmissionSystem说明thatis表示“即，换句话说，就是说”。thatis后面的句子有词语省略，补全应为：…thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandiszeroat180degreesfiringangle.朱永强zyq@FlexibleACTransmissionSystem3.Thecapacitorswitching(connecting)takesplaceatthatspecificinstantinacycleatwhichtheconditionsforminimumtransientsaresatisfied,thatis,whenthevoltageacrossthethyristorvalveiszeroorminimum.尝试翻译3.Thecapacitorswitching(connecting)takesplaceatthatspecificinstantinacycleatwhichtheconditionsforminimumtransientsaresatisfied,thatis,whenthevoltageacrossthethyristorvalveiszeroorminimum.生词adj.转瞬即逝的

n.瞬变transient

翻译电容投切（连接）发生在一个周期中的特定时刻，此时的最小暂态现象令人满意，即，晶闸管阀上的压降为零或最小的时候。FlexibleACTransmissionSystem说明atwhich引导的定语从句修饰specificinstant。atthatinstantatwhich与when的含义接近，都表示发生的时刻，引导时间状语从句，这两个状语从句是并列关系。FlexibleACTransmissionSystem4.TheresponsetimeofSVCsisintherangeof2-3cycleswhichmakesSVCswellsuitedforapplicationsinwhichfastandrepetitivecontrolofreactivepowerisrequired.尝试翻译4.TheresponsetimeofSVCsisintherangeof2-3cycleswhichmakesSVCswellsuitedforapplicationsinwhichfastandrepetitivecontrolofreactivepowerisrequired.生词adj.

重复的，反复性的repetitive翻译SVC的响应时间在2-3个周期的范围内，使其很适合用在需要无功功率的快速、重复控制的应用中。FlexibleACTransmissionSystem说明intherangeof表示“在…范围内”。which和inwhich引导的定语从句，分别修饰therangeof2-3cycles和applications。FlexibleACTransmissionSystem5.TheStaticSynchronousCompensator(STATCOM)isaprincipalstate-of-the-artFACTSequipmentandisnowacommerciallyavailableadditionaltoolforusebysystemplannersanddesignersforshuntreactivepowercompensationateitherthetransmissionlevelforvoltageregulationandsystemstabilityimprovementoratthedistributionlevelforvoltageregulation,powerfactorcorrectionand/orimprovementofpowerquality.尝试翻译5.TheStaticSynchronousCompensator(STATCOM)isaprincipalstate-of-the-artFACTSequipmentandisnowacommerciallyavailableadditionaltoolforusebysystemplannersanddesignersforshuntreactivepowercompensationateitherthetransmissionlevelforvoltageregulationandsystemstabilityimprovementoratthedistributionlevelforvoltageregulation,powerfactorcorrectionand/orimprovementofpowerquality.生词adj.

达到最新技术发展水平的state-of-the-art

n.改正，修正correctionFlexibleACTransmissionSystem说明这是一个典型的英文长句。翻译是要注意整个句子的通顺流畅。state-of-the-art意思是“达到最新技术发展水平的”。句式表示“要么…，要么…”，或“或者…或者…”。翻译静止同步补偿器（STATCOM）是重要的、达到最新发展水平的FACTS设备，现在作为可用的额外工具被系统规划和设计人员用于并联无功补偿，要么在输电级用于电压调整和系统稳定性改善，要么在配电级用于电压调整、功率因数校正和/或电能质量的改善。FlexibleACTransmissionSystem6.AswithallstaticFACTSdevicestheSTATCOMhasthepotentialtobeexceptionallyreliablebutwithaddedcapabilityto…尝试翻译6.AswithallstaticFACTSdevicestheSTATCOMhasthepotentialtobeexceptionallyreliablebutwithaddedcapabilityto…生词adv.极其，非常exceptionally翻译STATCOM在和所有静态FACTS设备一样具有异常可靠的潜能的同时，此外还有……的能力。FlexibleACTransmissionSystem说明句首的Aswith表示“和……一样，与……一致”。but表示“除……之外，此外”。注意：千万不能把withall看作一体，译为“尽管”，更不能but把译为“但是”。本课程参考教材：朱永强《电力专业英语阅读与翻译》机械工业出版社2024-06电力专业英语(22)PowerQualityandItsImprovement参考教材：朱永强.电力专业英语阅读与翻译.机械工业出版社，2024-06PowerQualityandItsImprovement1.Notethatpowerqualityhasnothingtodowithdeviationsoftheproductofvoltageandcurrent(thepower)fromanyidealshape.尝试翻译1.Notethatpowerqualityhasnothingtodowithdeviationsoftheproductofvoltageandcurrent(thepower)fromanyidealshape.翻译注意，电能质量和电压、电流乘积（功率）与任何理想形态的偏差无关。生词n.

电能质量powerqualityn.差异，偏差deviationPowerQualityandItsImprovement说明hasnothingtodowith表示“与……无关”。product意思是“乘积”，在此不能译为“产生”。deviationfromidealshape表示“与理想形态的偏差”。PowerQualityandItsImprovement2.Thebranchcurrentiscontrolledbyphaseanglecontrolofthefiringpulsestothethyristors,thatis,thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandzeroat180degrees.尝试翻译2.Thebranchcurrentiscontrolledbyphaseanglecontrolofthefiring

pulsestothethyristors,thatis,thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandzeroat180degrees.生词n.

点火脉冲firing

pulsen.半导体闸流管thyristor翻译通过对晶闸管点火脉冲的相角控制来控制支路电流，即，电抗器上的压降在点火角为90度时为全部系统电压，在180度时为零。PowerQualityandItsImprovement说明thatis表示“即，换句话说，就是说”。thatis后面的句子有词语省略，补全应为：…thevoltageacrossthereactorsisthefullsystemvoltageat90degreesfiringangleandiszeroat180degreesfiringangle.PowerQualityandItsImprovement3.Thecapacitorswitching(connecting)takesplaceatthatspecificinstantinacycleatwhichtheconditionsforminimumtransientsaresatisfied,thatis,whenthevoltageacrossthethyristorvalveiszeroorminimum.尝试翻译3.Thecapacitorswitching(connecting)takesplaceatthatspecificinstantinacycleatwhichtheconditionsforminimumtransientsaresatisfied,thatis,whenthevoltageacrossthethyristorvalveiszeroorminimum.生词adj.转瞬即逝的

n.瞬变transient

翻译电容投切（连接）发生在一个周期中的特定时刻，此时的最小暂态现象令人满意，即，晶闸管阀上的压降为零或最小的时候。PowerQualityandItsImprovement说明atwhich引导的定语从句修饰specificinstant。atthatinstantatwhich与when的含义接近，都表示发生的时刻，引导时间状语从句，这两个状语从句是并列关系。PowerQualityandItsImprovement4.TheresponsetimeofSVCsisintherangeof2-3cycleswhichmakesSVCswellsuitedforapplicationsinwhichfastandrepetitivecontrolofreactivepowerisrequired.尝试翻译4.TheresponsetimeofSVCsisintherangeof2-3cycleswhichmakesSVCswellsuitedforapplicationsinwhichfastandrepetitivecontrolofreactivepowerisrequired.生词adj.

重复的，反复性的repetitive翻译SVC的响应时间在2-3个周期的范围内，使其很适合用在需要无功功率的快速、重复控制的应用中。PowerQualityandItsImprovement说明intherangeof表示“在…范围内”。which和inwhich引导的定语从句，分别修饰therangeof2-3cycles和applications。PowerQualityandItsImprovement5.TheStaticSynchronousCompensator(STATCOM)isaprincipalstate-of-the-artFACTSequipmentandisnowacommerciallyavailableadditionaltoolforusebysystemplannersanddesignersforshuntreactivepowercompensationateitherthetransmissionlevelforvoltageregulationandsystemstabilityimprovementoratthedistributionlevelforvoltageregulation,powerfactorcorrectionand/orimprovementofpowerquality.尝试翻译5.TheStaticSynchronousCompensator(STATCOM)isaprincipalstate-of-the-artFACTSequipmentandisnowacommerciallyavailableadditionaltoolforusebysystemplannersanddesignersforshuntreactivepowercompensationateitherthetransmissionlevelforvoltageregulationandsystemstabilityimprovementoratthedistributionlevelforvoltageregulatio